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Finding the Fourth Proportional to 53,355.66, 80,037.54 and 15,912.80

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Solution

The fourth proportional to 53,355.66, 80,037.54 and 15,912.80 is: 23,870.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,355.66 : 80,037.54 = 15,912.80 : x
  2. Step 2: Convert to fraction form
    53,355.66/80,037.54 = 15,912.80/x
  3. Step 3: Cross multiply
    53,355.66x = 80,037.54 × 15,912.80
  4. Step 4: Simplify right side
    53,355.66x = 1,273,621,366.51
  5. Step 5: Solve for x
    x = 1,273,621,366.51/53,355.66
  6. Step 6: Final answer
    x = 23,870.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.